The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 06, 2002
Filed:
Dec. 19, 2000
Gerrit Jan Meek, Eindhoven, NL;
Cornelis Martinus Van Doorn, Eindhoven, NL;
Wilhelmus Hubertus Baaten, Eindhoven, NL;
Casparus Willibrordus Kruijer, Eindhoven, NL;
Koninklijke Philips Electronics, N.V., Eindhoven, NL;
Abstract
A medical apparatus for (radiation) diagnosis or therapy can be provided with moving parts . Such an apparatus must be provided with a collision detection device . A known collision sensor measures the supply current for the drive motor and hence induces a high degree of inaccuracy in the collision detection. According to the invention the force applied to the moving part (image intensifier ) is measured directly on the relevant part so as to be compared with an expected value, an alarm signal being generated when a threshold value for the difference is exceeded. The expected value is calculated while taking into account all movement and acceleration parameters of the apparatus. The expected values can be calculated in advance and stored in a look-up table or can be calculated, preferably while using a model of the apparatus, during operation of the apparatus.